Culpin, Howard <br/><br/>
The true book about underwater exploration 

 - London :  Frederick muller limited,  1958 
 - 143p.;  20cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences and mathematics
<br/><br/><label>Dewey Class. No.: </label>551.4607  / CUL